EcoFlow WAVE 3 vs Zero Breeze Mark 3: Cooling, Battery Runtime and Price

In the EcoFlow WAVE 3 vs Zero Breeze Mark 3 call, the WAVE 3 cools harder for less money, battery included. The Mark 3 is lighter. Both are in our air conditioners range, but they suit different camps.

That's the short answer. The rest depends on where you sleep and what you'll run it off. Every spec below is from the makers' own pages, and every price is from 13 September 2026.

Portable Air Conditioner Specs Side by Side

Here's how the two line up on paper. EcoFlow's figures come from its WAVE 3 spec sheet, and Zero Breeze's from its Mark 3 tech specs.

Spec	EcoFlow WAVE 3	Zero Breeze Mark 3
Cooling output	1,800W (6,100 BTU)	1,550W (5,280 BTU)
Heating output	2,000W (6,800 BTU)	1,700W (5,800 BTU)
Rated cooling draw	690W AC, 640W DC	500W
Noise	44-58 dB	46 dB(A)
Unit weight	15.3kg	10kg
Battery	1,024Wh LFP, 9.7kg	1,022Wh lithium-ion, 6.4kg
Runtime per charge	2-8 hr	2-7 hr
Operating temperature	5-50°C	10-40°C
Water resistance	IPX4	IPX4
Warranty	24 months	12 months
True Gear price	$1,099	$2,099

Cooling and Heating Output

The WAVE 3 puts out 1,800W of cooling to the Mark 3's 1,550W. That's about 16% more, and you'll feel it most in the first half hour of a hot arvo, when you're trying to drag your tent or van back down to something bearable.

Heating goes the same way, at 2,000W against 1,700W. Zero Breeze calls the Mark 3's heat mode a supplementary feature, and says it only works when it's above 10°C around you.

So neither is a winter heater for your high country trips. On a crisp autumn morning in the van, though, either one takes the chill off.

Operating Temperature Limits for Australian Summers

Most comparisons skip this spec. Zero Breeze rates the Mark 3 for 10-40°C, while EcoFlow rates the WAVE 3 for 5-50°C.

If your summer trips take in Mildura or the Pilbara, that ceiling matters to you. Once it tops 40°C, the WAVE 3 is still inside its rating and the Mark 3 isn't.

Noise Levels in Sleep Mode

There's not much in it. EcoFlow lists the WAVE 3 at 44-58 dB and Zero Breeze lists the Mark 3 at 46 dB(A), but neither maker says how far away it measured, so call a 2 dB gap a draw.

Most people can sleep beside either one, though light sleepers may struggle. A tester at Digital Reviews Network found a noise-sensitive person in their house couldn't handle the Mark 3 running in the bedroom at night. If that's you, put the unit as far from your pillow as your duct allows.

Weight With and Without the Battery

The Mark 3 wins this one easily. Its unit weighs 10kg, against 15.3kg for the WAVE 3.

Add each maker's battery and the gap grows. The WAVE 3 with its add-on pack comes to 25.0kg, while the Mark 3 with its Smart Battery comes to 16.4kg. That's 8.6kg less for you to lift in and out of your 4WD every night.

Owners notice it. One buyer on a Mark 3 review thread says they picked it over the WAVE 3 for its weight, and RV.com's reviewer found the WAVE 3 with its add-on pack "a little bulky to move around".

Price and Warranty in Australia

At True Gear, the WAVE 3 is $1,099 and the Mark 3 is $2,099. That's $1,000 between them before you add a battery.

Batteries narrow the gap a little. The Mark 3 Smart Battery is $1,199, so your Mark 3 with one battery costs $3,298. We don't stock EcoFlow's add-on pack for the WAVE 3. EcoFlow Australia lists it at $1,299 full price, which puts your WAVE 3 setup at $2,398.

So a WAVE 3 setup still comes in about $900 cheaper for you. Price is the gripe owners raise most, too. A Caravaners Forum member summed up the Mark 3's downside as "expensive around $2000".

On warranty, EcoFlow Australia's warranty table gives the WAVE 3 and its Add-On Battery 24 months. Zero Breeze's Mark 3 FAQ lists a one-year warranty, with a six-month bonus if you register it. Both sit on top of your consumer guarantees under the Australian Consumer Law, which are automatic and can't be taken away.

Not sure which one fits your setup? Ring the store on 03 7056 6732 and we'll talk it through with you.

Battery Runtime, 12V and Solar Charging

Runtime per Charge

Picture a still night at a camp out past Longreach. Your swag has held the day's heat, so you fire the aircon up on full. By midnight the pack's flat, and you're lying there sweating till dawn.

Both makers quote a range, and the top of it is the gentle end. EcoFlow gives your WAVE 3 2-8 hours on its 1,024Wh battery. Zero Breeze's FAQ breaks its 1,022Wh pack down by mode, from 2-3 in Rocket to 5-7 in Sleep.

Push either one hard and the sums are simple. At the WAVE 3's 640W rated DC draw, 1,024Wh lasts you about 1.6 hours. At the Mark 3's 500W, 1,022Wh lasts about 2, and that's before any losses.

Owners report the same. A Sydney owner living in their van runs the WAVE 3 flat out at 17°C and gets about 2 hours from the add-on battery on hot nights, and GPX Adventures' testers found a single Mark 3 pack "a bit tight" when the night stayed warm.

The fix is the setting. Drop the Mark 3 to that gentler mode and Zero Breeze's 5-7 figure covers most of your night, so you drift off cool instead of waking at 2am in a sweat.

Want full cooling right through to sunrise? Budget for a second battery or a bigger power source. Zero Breeze quotes 10-14 on two batteries at that setting, and EcoFlow rates its add-on pack to keep 80% capacity after 4,000 cycles.

Charging From Solar, 12V and the Alternator

EcoFlow WAVE 3 Charging Options

EcoFlow says its add-on pack takes up to 400W of solar panels and fills in about 3 hours that way. On mains it's about 2, and a 100W car socket is emergency charging at around 10.

For a touring rig, your neater setup is EcoFlow's 800W Alternator Charger, which charges while you drive. EcoFlow doesn't recommend running the WAVE 3 straight off it, because the power is unstable. Charge the battery on the road, then run your aircon off it at camp.

Zero Breeze Mark 3 Charging Options

The Mark 3 itself runs on 48V DC. Its Smart Battery takes 12-60V DC in, Zero Breeze bills the unit as a 500W solar-powered aircon, and the pack reaches 80% in about 2 hours on the official adapter.

Running the Mark 3 straight off your 12V system is the catch. Zero Breeze's FAQ says you'll need its 48V Booster and at least 42A at 12V, which is about 500W. Check your wiring and 12V setup can carry that before you plan a trip around it.

Running Either Unit Off a Portable Power Station

Already own a power station? Both will work off it. The WAVE 3 draws up to 820W on AC input, so your station's inverter needs that much headroom. Zero Breeze says the Mark 3 needs at least 500W, through its AC adapter or a 48V DC output.

Capacity then sets your night. A 2,000Wh station running the WAVE 3 at its 690W rated AC draw gives you about 2.9 hours before inverter losses. The same station running the Mark 3 at 500W gives you about 4.

The power station finder helps you match a station to your load, and the guide on whether a Bluetti can run an air conditioner covers pairing a station with aircon.

Which to Buy for a Tent, Swag, Camper Van or Caravan

Venting the Hot Air Outside

Get this wrong and neither unit will do much for you. Every portable air conditioner pushes hot air out the back, and if that air stays inside, the unit fights itself.

Zero Breeze's FAQ recommends fitting the rear dual ducts in tents and vans, and it sells a tent venting kit for the Mark 3. Owners take it further. A Caravaners Forum member found their portable's exhaust hose was heating the van back up, and fixed it by insulating the hose. A Mark 3 owner warns you also need the rear upper hose connected, or you're blowing your cool air outside.

Sort your ducting at home, where you've got daylight and a tape measure.

Tent, Swag and Rooftop Tent

A swag or rooftop tent is a small space, and that's where these units make the most sense for camping.

Pick the Mark 3 if you're carrying it any distance. With its pack, it's 8.6kg lighter than the WAVE 3, and it takes up less room in your loaded 4WD.

Pick the WAVE 3 if budget matters more than weight, or your camp regularly tops 40°C. It cools harder, and it's rated up to 50°C.

Either way, your tent will leak chilled air. Reviews.org's Australian testers point out that fabric lets it escape, and you're back to square one once the unit stops.

Camper Van and 4WD Wagon

In a van, the WAVE 3 gets the nod. You've got more air to cool, so its extra output earns its keep, and paired with the Alternator Charger your battery tops up on the drive to camp.

Keep your expectations honest, though. These handle a small space well, but a van that's baked all afternoon is hard work for either one. In the same reviews.org test, a room of about 20 square metres dropped one degree an hour with the Mark 3, and one Mark 3 owner says theirs works fine as long as the space is already cool.

Start it early, before your van soaks up the afternoon, and park in shade where you can.

Caravan Bed End

Neither unit will cool a whole caravan on a 38°C afternoon. What they can do is chill the bed end with the curtain or door shut.

The WAVE 3 suits this job better, thanks to its extra output and wider operating range. If you want your whole van cool, a rooftop or under-bunk system is the right tool, and the best caravan air conditioner guide covers those.

When Neither Is the Right Buy

Here are the real downsides, for both.

If you camp in dry heat above 40°C most summers, or you want a whole caravan cooled, a portable air conditioner is the wrong tool for you. Look at a fixed system instead.

If you mostly stay on powered sites, you're paying a lot for battery capacity you'll rarely use, since either unit runs off mains without one.

And if you won't set the ducting up properly, you'll be disappointed with either one. That's the story owners tell most.

We sell both, and we'd still point most people to the WAVE 3. The Mark 3 only earns its extra $1,000 if weight matters most to you.

Still weighing it up? Ring the store on 03 7056 6732 or text 0476 330 590 and tell us how you camp, and we'll help you match one to your setup.

Related reading: EcoFlow Wave 2 vs Wave 3, portable power stations, pairing solar with a power station and the Zero Breeze range.